Yes, same as before:
%TC_ROOT%\bin\import_attr_mappings -file=<your mapping file> -u=<your username> -p=<your password> -g=<your TC group>
First you need to use export_attr_mapping to generate the current mapping text file.
You will edit that to include your mappings.
The changed file will be imported afterwards.
The administration help for Teamcenter should have some examples.
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